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Sibillastefano - One of the best experts on this subject based on the ideXlab platform.

Kai Yang - One of the best experts on this subject based on the ideXlab platform.

  • Well-posedness and robust preconditioners for discretized fluid–structure Interaction systems
    Computer Methods in Applied Mechanics and Engineering, 2015
    Co-Authors: Kai Yang
    Abstract:

    Abstract In this paper we develop a family of preconditioners for the linear algebraic systems arising from the arbitrary Lagrangian–Eulerian discretization of some fluid–structure Interaction models. After the time discretization, we formulate the fluid–structure Interaction equations as saddle point problems and prove the uniform well-posedness. Then we discretize the space dimension by finite element methods and prove their uniform well-posedness by two different approaches under appropriate assumptions. The uniform well-posedness makes it possible to design robust preconditioners for the discretized fluid–structure Interaction systems. Numerical examples are presented to show the robustness and efficiency of these preconditioners.

  • Well-posedness and Robust Preconditioners for the Discretized Fluid-Structure Interaction Systems
    arXiv: Numerical Analysis, 2014
    Co-Authors: Kai Yang
    Abstract:

    In this paper we develop a family of preconditioners for the linear algebraic systems arising from the arbitrary Lagrangian-Eulerian discretization of some Fluid-Structure Interaction models. After the time discretization, we formulate the Fluid-Structure Interaction equations as saddle point problems and prove the uniform well-posedness. Then we discretize the space dimension by finite element methods and prove their uniform well-posedness by two different approaches under appropriate assumptions. The uniform well-posedness makes it possible to design robust preconditioners for the discretized Fluid-Structure Interaction systems. Numerical examples are presented to show the robustness and efficiency of these preconditioners.

Vierendeelsjan - One of the best experts on this subject based on the ideXlab platform.

Antocicarla - One of the best experts on this subject based on the ideXlab platform.

Jacky Fabis - One of the best experts on this subject based on the ideXlab platform.

  • Modeling accidental-type fluid–structure Interaction problems with the SPH method
    Computers and Structures, 2009
    Co-Authors: Sergej Potapov, Bertrand Maurel, Alain Combescure, Jacky Fabis
    Abstract:

    This paper presents the validation aspects of a unified numerical framework based on SPH formulation and devoted to the modeling of fluid–structure Interaction problems involving large motion of the fluid and large deformation with a possible failure of the structure. The fluid domain is modeled according to an updated Lagrangian formulation. The solid domain (3D and shell models) uses the total Lagrangian formulation. The fluid–structure Interaction is treated via a unilateral contact algorithm adapted to SPH context. The SPH framework is verified on academic test cases and validated by simulating an experiment involving the reservoir leakage.